| 干湿循环效应对膨胀土抗剪强度的影响 |
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| 引用本文： | 杨和平,肖夺.干湿循环效应对膨胀土抗剪强度的影响[J].长沙理工大学学报(自然科学版),2005,2(2):1-5,12. |
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| 作者姓名： | 杨和平 肖夺 |
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| 作者单位： | 长沙理工大学,特殊土工程研究所,湖南,长沙,410076;长沙理工大学,特殊土工程研究所,湖南,长沙,410076 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 膨胀土除具有一般非饱和土的共性外，还受季节性气候的影响，其抗剪强度具有明显的变动特性．为此，通过模拟土体季节性的干缩湿胀，采用常规直剪试验方法，测试了宁明膨胀土击实土样经干缩湿胀饱水后的抗剪强度，并与其它类似的试验结果进行了比较，以探讨干湿循环效应对膨胀土强度的影响及试验方法的合理性．
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| 关 键 词： | 击实膨胀土 抗剪强度 干湿循环效应 直剪试验 |
| 文章编号： | 1672-9331(2005)02-0001-05 |
The Influence of Alternate Dry-wet Effect on the Strength Characteristic of Expansive Soils |
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| YANG He-ping,XIAO Duo.The Influence of Alternate Dry-wet Effect on the Strength Characteristic of Expansive Soils[J].Journal of Changsha University of Science and Technology:Natural Science,2005,2(2):1-5,12. |
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| Authors: | YANG He-ping XIAO Duo |
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| Abstract: | Besides the general character of unsaturated soil,the prominent characteristic of expansive soil is that its shear strength has the obvious varying property with the changing of seasonal climate.Simulating the seasonal alternate dry-wet effect,the shear strength of saturated compacting sample of Ningming expansive soil has been conducted with direct shear test instrument and the test result has been analyzed in comparison with other similar direct shear test result of area's expansive soil and the influence of dry-wet effect for saturated expansive soil strength and the feasibility of test method have been discussed. |
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| Keywords: | expansive soil shear strength alternate dry-wet effect direct shear test |
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